Finding the Fourth Proportional to 89,454.47, 123,450.42 and 49,171.30

Step by Step Solution

1. Step 1: Write the proportion equation
   89,454.47 : 123,450.42 = 49,171.30 : x
2. Step 2: Convert to fraction form
   89,454.47/123,450.42 = 49,171.30/x
3. Step 3: Cross multiply
   89,454.47x = 123,450.42 × 49,171.30
4. Step 4: Simplify right side
   89,454.47x = 6,070,217,636.95
5. Step 5: Solve for x
   x = 6,070,217,636.95/89,454.47
6. Step 6: Final answer
   x = 67,858.18